Ship Features
Without Fear
Feature flags that give your team instant control over every feature in production. Deploy fearlessly, target precisely, experiment freely — at a fraction of what you're paying now.
Trusted by engineering teams at
What engineers are saying
“We migrated from LaunchDarkly in a weekend. Our monthly bill went from $4,200 to $29. Same features, better DX.”
“The SDK is genuinely delightful. Type-safe, fast, and the MCP integration means our AI workflows are flag-aware out of the box.”
“Scheduled releases changed how we do product launches. Set the flag, set the date, ship it. No more 2am deploys.”
Everything you need.
Nothing you don't.
A complete feature management platform that's powerful enough for enterprise teams and simple enough to set up in minutes.
Instant Rollouts
Ship features safely with instant toggles and percentage-based rollouts. Deploy anytime and control who sees what — without redeploying.
A/B Testing
Run experiments natively. Define variants with traffic splits, measure what works, and make data-driven decisions.
Targeting Rules
Deliver the right experience to the right users. Create segments based on user attributes with 10+ condition operators.
Multi-Environment
Mirror your deployment pipeline. Isolate flag configurations across dev, staging, and production with separate API keys.
Audit Log
Full audit trail of every change. Know who changed what, when, and why. Export logs for compliance and GDPR requirements.
SDK Support
Official SDKs for TypeScript, Go, Python, Ruby, and Rust — with built-in caching, automatic retries, and type safety. Plus a REST API and MCP server.
Scheduled Releases
Set start and end dates on any flag. Automate launches, campaigns, and timed rollouts without manual intervention.
Real-Time Webhooks
HMAC-SHA256 signed notifications when flags change. Keep CI/CD, Slack, and audit systems in sync.
Enterprise Security
SSO/OIDC with Okta, Azure AD, or Google. Custom RBAC roles, comprehensive audit logs, and GDPR-compliant data deletion.
Get started in
5 minutes
SDKs for every major language. REST API for everything else. MCP server for AI-native workflows. Pick your path.
Available SDKs
TypeScript (Node.js) · React · Go · Python · Ruby · Rust · Java · Terraform
SDK feature support details →Note: feature support can differ slightly by language (especially caching + fallback behavior).
- Type-safe SDKs with full IDE support
- Built-in caching & automatic retries
- One call to fetch every flag at once
- Context-aware targeting you configure in the dashboard
- MCP server for Cursor, Claude Code & VS Code
npm install @buildrflags/sdk1import { createClient } from '@buildrflags/sdk';23const client = createClient({4 apiKey: process.env.BUILDRFLAGS_API_KEY,5});67// Simple on/off check8if (await client.isEnabled('new-checkout')) {9 showNewCheckout();10}
Global on/off — no context needed
Why teams switch to
BuildrFlags
All the features you need at a price that makes sense. No enterprise-only gates.
| Feature |  BuildrFlags | LaunchDarkly | Split.io | Flagsmith |
|---|---|---|---|---|
| Starting price | $29/mo flat | $70K+/yr | Contact sales | $45/mo + usage |
| Feature flags | ||||
| A/B testing | Extra cost | |||
| Targeting rules | ||||
| Multi-environment | ||||
| Scheduled releases | ||||
| Environment promotion | ||||
| Webhooks (HMAC signed) | ||||
| MCP server (AI-native) | ||||
| SSO/OIDC | Enterprise | Enterprise | Enterprise | Enterprise |
| Flat pricing (no per-seat) | ||||
| Open-source SDKs |
Simple, transparent pricing
No per-seat fees. No per-MAU charges. No surprises.
Start free, upgrade when you need more.
Starter
Free forever. No credit card required.
- 5 feature flags
- 1 environment
- 1 workspace
- 1 team member
- Basic targeting rules
- REST API & SDK access
- Community support
- A/B experiments
- Webhooks
- Audit log
Pro
No charge for 7 days. Cancel anytime.
- 100 feature flags
- 3 environments
- 5 team members
- Targeting rules & rollouts
- A/B experiments
- Priority email support
- 30-day audit log
- Full API & SDK access
Pro Max
No charge for 7 days. Cancel anytime.
- 500 feature flags
- 6 environments
- 10 team members
- Everything in Pro
- Environment promotion
- Advanced audit logs
- Full API & SDK access
Starter is free forever. Pro & Pro Max include a 7-day free trial — card required, no charge until trial ends.
Feature flags (also known as feature toggles) let you enable or disable features in your application without deploying new code. They're essential for safe deployments, A/B testing, and gradual rollouts.